Buggy code:
public class RenderJitcTest extends TestCase { private static final Logger LOGGER = LoggerFactory . getLogger ( RenderJitcTest . class ) ; public RenderJitcTest ( String testName ) { } @ Override protected void setUp ( ) throws Exception { } @ Override protected void tearDown ( ) throws Exception { } @ Test public void testNS3038A ( ) throws IOException , ParseException { } @ Test public void testI_3041A ( ) throws IOException , ParseException { } @ Test public void testNS3050A ( ) throws IOException , ParseException { } @ Test public void testU_1036A ( ) throws IOException , ParseException { } @ Test public void testU_1050A ( ) throws IOException , ParseException { } @ Test public void testU_4003B ( ) throws IOException , ParseException { } @ Test public void testU_4004B ( ) throws IOException , ParseException { } @ Test public void testU_1001A ( ) throws IOException , ParseException { } @ Test public void testU_1034A ( ) throws IOException , ParseException { } @ Test public void testU_1101A ( ) throws IOException , ParseException { } @ Test public void testU_1122A ( ) throws IOException , ParseException { } @ Test public void testU_2001A ( ) throws IOException , ParseException { } @ Test public void testU_3002A ( ) throws IOException , ParseException { } @ Test public void testU_3010A ( ) throws IOException , ParseException { } @ Test public void testU_3050B ( ) throws IOException , ParseException { } @ Test public void testU_4002A ( ) throws IOException , ParseException { } @ Test public void testU_4005A ( ) throws IOException , ParseException { } @ Test public void testU_4007A ( ) throws IOException , ParseException { } @ Test public void testI_3001A ( ) throws IOException , ParseException { } @ Test public void testI_3004G ( ) throws IOException , ParseException { } @ Test public void testI_3201C ( ) throws IOException , ParseException { } @ Test public void testI_3034C ( ) throws IOException , ParseException { } @ Test public void testI_3034F ( ) throws IOException , ParseException { } @ Test public void testI_3228C ( ) throws IOException , ParseException { } @ Test public void testNS3228D ( ) throws IOException , ParseException { } @ Test public void testI_3228E ( ) throws IOException , ParseException { } @ Test public void testNS3301B ( ) throws IOException , ParseException { } @ Test public void testNS3301E ( ) throws IOException , ParseException { } @ Test public void testI_3301H ( ) throws IOException , ParseException { } @ Test public void testNS3301J ( ) throws IOException , ParseException { } @ Test public void testI_3301K ( ) throws IOException , ParseException { } @ Test public void testNS3302A ( ) throws IOException , ParseException { } @ Test public void testI_3303A ( ) throws IOException , ParseException { } @ Test public void testNS3310A ( ) throws IOException , ParseException { } @ Test public void testI_3405A ( ) throws IOException , ParseException { } @ Test public void testI_3430A ( ) throws IOException , ParseException { } @ Test public void testNS3004F ( ) throws IOException , ParseException { } @ Test public void testNS3034D ( ) throws IOException , ParseException { } @ Test public void testNS3201A ( ) throws IOException , ParseException { } @ Test public void testV_3301F ( ) throws IOException , ParseException { } @ Test public void testU_3058B ( ) throws IOException , ParseException { } @ Test public void testNS3361C ( ) throws IOException , ParseException { } @ Test public void testI_3025b ( ) throws IOException , ParseException { } @ Test public void testI_3309a ( ) throws IOException , ParseException { } @ Test public void testI_3113g ( ) throws IOException , ParseException { } @ Test public void testNS3228b ( ) throws IOException , ParseException { } private void testOneFile ( final String testfile , final String parentDirectory ) throws IOException , ParseException { <START_BUG> String inputFileName = ( ( ( File . separator ) + parentDirectory ) + ( File . separator ) ) + testfile ; <END_BUG> RenderJitcTest . LOGGER . info ( ( "==================================<seq2seq4repair_space>Testing<seq2seq4repair_space>:" + inputFileName ) ) ; assertNotNull ( ( "Test<seq2seq4repair_space>file<seq2seq4repair_space>missing:<seq2seq4repair_space>" + inputFileName ) , getClass ( ) . getResource ( inputFileName ) ) ; final ThreadLocal < Integer > i = new ThreadLocal < Integer > ( ) ; i . set ( 0 ) ; new NitfParserInputFlow ( ) . inputStream ( getClass ( ) . getResourceAsStream ( inputFileName ) ) . imageData ( ) . forEachImage ( ( header ) -> { NitfRenderer renderer = new NitfRenderer ( ) ; try { ImageInputStream imageData = header . getData ( ) ; BufferedImage img = renderer . render ( header ) ; ImageIO . write ( img , "png" , new File ( ( ( ( ( ( "target" + File . separator ) + testfile ) + "_" ) + ( i . get ( ) ) ) + ".png" ) ) ) ; } catch ( IOException | UnsupportedOperationException e ) { LOGGER . error ( e . getMessage ( ) , e ) ; } i . set ( ( ( i . get ( ) ) + 1 ) ) ; } ) ; } }

Fix:
String inputFileName = ( ( "//" + parentDirectory ) + "//" ) + testfile ;